Momentum

Duncan GodseyBrianna BoyerAlex Traeger

Devon GregoryJeremy MassariBailey Curfman

Momentum Intro

• Momentum- The mass of an object multiplied by its velocity(inertia in motion).

• Formula: momentum= mass X velocity(momentum=mv)

• When direction is not a factor: momentum=mass X speed

Impulse

• The impulse is equal to the change in momentum.

• Formula: impulse= force X time interval

Bouncing

• Bouncing causes the impulses to be greater.• Bouncing requires greater impulse because it

needs enough momentum to make the object sto and then bounce back upward.

• In comparison the impulse is less without a bounce because it just stops and stays at rest.

Conservation of Momentum

• Law of conversation of momentum states: “In the absence of external force, the momentum of a system remains unchanged.”

• Conserved: when momentum does not change.

Collisions

• Elastic collisions-colliding objects bound or rebound without lasting deformation or the generation of heat. This creates a perfect bounce. Such as billiard balls colliding.

• Inelastic collisions-colliding objects become distorted and generate heat. Such as freight trains colliding.

Momentum Vectors

• Direction of colliding objects effects the resulting momentum and direction.

• For example a car due north collides with a car due east at equal momentum will progress in the north east direction.

Citation

• Momentum and collisions:" Conceptual Physics. Menlo Park California: Addison-Wesley, 1987. 660. Print.